This compares the output of different gamut mapping algorithms when
mapping to rec2020, and then clipping to p3 and
srgb to approximate clipping to the display device.
It steps through the xyz-d65 space with the provided delta,
and checks a color if it is outside of rec2020.
Scales:
L = 0-100 (So a 1 would be equivalent to 0.01 or 1%)
C = 0-0.4 (Most of the mapped colors had very high chroma to start with, so we're seeing large shifts here, as expected)
h = 0-360
Algorithms:
edge: Edge Tracer, mapping to rec2020
chromium: Chromium "baked in" implementation, mapping to rec2020